startList = function() {
if (document.all&&document.getElementById) 
{
navRoot = document.getElementById("nav");
for (i=0; i<navRoot.childNodes.length; i++) 
{
node = navRoot.childNodes[i];
if (node.nodeName=="LI") 
{
node.onmouseover=function() {
this.className+=" over";
}
node.onmouseout=function() {
  				this.className=this.className.replace(" over", "");
   				}
   			}
  		}
 	}
}
window.onload=startList;
